git.m6w6.name Git - awesomized/libmemcached/blob - clients/utilities.cc

   1 /* LibMemcached
   2  * Copyright (C) 2006-2009 Brian Aker
   3  * All rights reserved.
   4  *
   5  * Use and distribution licensed under the BSD license.  See
   6  * the COPYING file in the parent directory for full text.
   7  *
   8  * Summary:
   9  *
  10  */
  11 #include <config.h>
  12
  13 #include <clients/utilities.h>
  14
  15 #include <cstdio>
  16 #include <cassert>
  17 #include <cstdlib>
  18 #include <cstring>
  19 #include <ctype.h>
  20 #include <fcntl.h>
  21 #include <sys/stat.h>
  22 #include <sys/types.h>
  23 #include <unistd.h>
  24
  25
  26 long int timedif(struct timeval a, struct timeval b)
  27 {
  28   long us, s;
  29
  30   us = (int)(a.tv_usec - b.tv_usec);
  31   us /= 1000;
  32   s = (int)(a.tv_sec - b.tv_sec);
  33   s *= 1000;
  34   return s + us;
  35 }
  36
  37 void version_command(const char *command_name)
  38 {
  39   printf("%s v%u.%u\n", command_name, 1U, 0U);
  40   exit(EXIT_SUCCESS);
  41 }
  42
  43 void close_stdio(void)
  44 {
  45   int fd;
  46   if ((fd = open("/dev/null", O_RDWR, 0)) < 0)
  47   {
  48     return;
  49   }
  50   else
  51   {
  52     if (dup2(fd, STDIN_FILENO) < 0)
  53     {
  54       return;
  55     }
  56
  57     if (dup2(fd, STDOUT_FILENO) < 0)
  58     {
  59       return;
  60     }
  61
  62     if (dup2(fd, STDERR_FILENO) < 0)
  63     {
  64       return;
  65     }
  66
  67     if (fd > STDERR_FILENO)
  68     {
  69       close(fd);
  70     }
  71   }
  72 }
  73
  74
  75 static const char *lookup_help(memcached_options option)
  76 {
  77   switch (option)
  78   {
  79   case OPT_SERVERS: return("List which servers you wish to connect to.");
  80   case OPT_VERSION: return("Display the version of the application and then exit.");
  81   case OPT_HELP: return("Display this message and then exit.");
  82   case OPT_VERBOSE: return("Give more details on the progression of the application.");
  83   case OPT_QUIET: return("stderr and stdin will be closed at application startup.");
  84   case OPT_DEBUG: return("Provide output only useful for debugging.");
  85   case OPT_FLAG: return("Provide flag information for storage operation.");
  86   case OPT_EXPIRE: return("Set the expire option for the object.");
  87   case OPT_SET: return("Use set command with memcached when storing.");
  88   case OPT_REPLACE: return("Use replace command with memcached when storing.");
  89   case OPT_ADD: return("Use add command with memcached when storing.");
  90   case OPT_SLAP_EXECUTE_NUMBER: return("Number of times to execute the given test.");
  91   case OPT_SLAP_INITIAL_LOAD: return("Number of key pairs to load before executing tests.");
  92   case OPT_SLAP_TEST: return("Test to run (currently \"get\" or \"set\").");
  93   case OPT_SLAP_CONCURRENCY: return("Number of users to simulate with load.");
  94   case OPT_SLAP_NON_BLOCK: return("Set TCP up to use non-blocking IO.");
  95   case OPT_SLAP_TCP_NODELAY: return("Set TCP socket up to use nodelay.");
  96   case OPT_FLUSH: return("Flush servers before running tests.");
  97   case OPT_HASH: return("Select hash type.");
  98   case OPT_BINARY: return("Switch to binary protocol.");
  99   case OPT_ANALYZE: return("Analyze the provided servers.");
 100   case OPT_UDP: return("Use UDP protocol when communicating with server.");
 101   case OPT_BUFFER: return("Enable request buffering.");
 102   case OPT_USERNAME: return "Username to use for SASL authentication";
 103   case OPT_PASSWD: return "Password to use for SASL authentication";
 104   case OPT_FILE: return "Path to file in which to save result";
 105   case OPT_STAT_ARGS: return "Argument for statistics";
 106   case OPT_SERVER_VERSION: return "Memcached daemon software version";
 107   default:
 108                       break;
 109   };
 110
 111   assert(0);
 112   return "forgot to document this function :)";
 113 }
 114
 115 void help_command(const char *command_name, const char *description,
 116                   const struct option *long_options,
 117                   memcached_programs_help_st *options)
 118 {
 119   unsigned int x;
 120   (void)options;
 121
 122   printf("%s v%u.%u\n\n", command_name, 1U, 0U);
 123   printf("\t%s\n\n", description);
 124   printf("Current options. A '=' means the option takes a value.\n\n");
 125
 126   for (x= 0; long_options[x].name; x++)
 127   {
 128     const char *help_message;
 129
 130     printf("\t --%s%c\n", long_options[x].name,
 131            long_options[x].has_arg ? '=' : ' ');
 132     if ((help_message= lookup_help(memcached_options(long_options[x].val))))
 133       printf("\t\t%s\n", help_message);
 134   }
 135
 136   printf("\n");
 137   exit(EXIT_SUCCESS);
 138 }
 139
 140 void process_hash_option(memcached_st *memc, char *opt_hash)
 141 {
 142   uint64_t set;
 143   memcached_return_t rc;
 144
 145   if (opt_hash == NULL)
 146     return;
 147
 148   set= MEMCACHED_HASH_DEFAULT; /* Just here to solve warning */
 149   if (!strcasecmp(opt_hash, "CRC"))
 150   {
 151     set= MEMCACHED_HASH_CRC;
 152   }
 153   else if (!strcasecmp(opt_hash, "FNV1_64"))
 154   {
 155     set= MEMCACHED_HASH_FNV1_64;
 156   }
 157   else if (!strcasecmp(opt_hash, "FNV1A_64"))
 158   {
 159     set= MEMCACHED_HASH_FNV1A_64;
 160   }
 161   else if (!strcasecmp(opt_hash, "FNV1_32"))
 162   {
 163     set= MEMCACHED_HASH_FNV1_32;
 164   }
 165   else if (!strcasecmp(opt_hash, "FNV1A_32"))
 166   {
 167     set= MEMCACHED_HASH_FNV1A_32;
 168   }
 169   else
 170   {
 171     fprintf(stderr, "hash: type not recognized %s\n", opt_hash);
 172     exit(EXIT_FAILURE);
 173   }
 174
 175   rc= memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_HASH, set);
 176   if (rc != MEMCACHED_SUCCESS)
 177   {
 178     fprintf(stderr, "hash: memcache error %s\n", memcached_strerror(memc, rc));
 179     exit(EXIT_FAILURE);
 180   }
 181 }
 182
 183 void initialize_sockets(void)
 184 {
 185   /* Define the function for all platforms to avoid #ifdefs in each program */
 186 #if defined(WIN32) && WIN32
 187   WSADATA wsaData;
 188   if (WSAStartup(MAKEWORD(2,0), &wsaData) != 0)
 189   {
 190     fprintf(stderr, "Socket Initialization Error. Program aborted\n");
 191     exit(EXIT_FAILURE);
 192   }
 193 #endif
 194 }